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http://www.geocities.com/palaeoanthropology |
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Homo rudolfensis had a flatter, broader face and broader postcanine teeth with more complex crowns and roots, and thicker enamel. This species also had a larger cranium. All the non-australopithecine speciments found at Olduvai Gorge are known to be Homo habilis, whereas the ones found at Lake Turkana can be divided between Homo habilis and Homo rudolfensis.
There is now a general agreement that two species of Homo coexisted 2 million years ago. Although the taxonomic distinction is based principally on cranial and dental characters, it is useful to think of Homo habilis as a smaller-brained creature with an archaic postcranium, and Homo rudolfensis as larger-brained with a more modern postcranium. Which of the two (if either) gave rise to later Homois still being debated. Homo rudolfensis appears to have a good claim based on brain size and the more modern postcranium, but some insist that its facial and dental anatomy disqualify it from this role.
Height | Ca. 1.5 metres |
Physique | Robust, but "human" skeleton |
Cranial Volume | 600 – 800 cm³ |
Known Date | 2.4 – 1.6 million years ago |
Distribution | Eastern Africa |
Skull form | Larger, flatter face |
Jaws/Teeth | Robust jaw; large narrow molars |
Type Derivation Tree
ArdipithecusRamidus (extension)
AustralopithecusAnamensis (extension) AustralopithecusAfarensis (extension) AustralopithecusAfricanus (extension) HomoRudolfensis |
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WSDL documentation generated with FlexDoc/XML 1.13 using FlexDoc/XML WSDLDoc 1.2.5 template set. All XSD diagrams generated by FlexDoc/XML DiagramKit. |